1221545407774720

Names of 1221545407774720

• Cardinal: 1221545407774720 can be written as One quadrillion, two hundred twenty-one trillion, five hundred forty-five billion, four hundred seven million, seven hundred seventy-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.22154540777472 × 10¹⁵

Factors of 1221545407774720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 14590540

Divisors of 1221545407774720

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 73 80 112 128 140 146 160 224 256 280 292 320 365 448 511 512 560 584 640 730 896 1022 1024 1120 1168 1280 1460 1792 2044 2048 2240 2336 2555 2560 2920 3584 4088 4096 4480 4672 5110 5120 5840 7168 8176 8192 8960 9344 10220 10240 11680 14336 16352 16384 17920 18688 20440 20480 23360 28672 32704 32768 35840 37376 40880 40960 46720 57344 65408 71680 74752 81760 81920 93440 114688 130816 143360 149504 163520 163840 186880 229376 261632 286720 299008 327040 373760 523264 573440 598016 654080 747520 1046528 1146880 1196032 1308160 1495040 2093056 2392064 2616320 2990080 4186112 5232640 5980160 8372224 10465280 11960320 14590453 16744448 20930560 29180906 41861120 58361812 72952265 83722240 102133171 116723624 145904530 204266342 233447248 291809060 408532684 466894496 510665855 583618120 817065368 933788992 1021331710 1065103069 1167236240 1634130736 1867577984 2042663420 2130206138 2334472480 3268261472 3735155968 4085326840 4260412276 4668944960 5325515345 6536522944 7455721483 7470311936 8170653680 8520824552 9337889920 10651030690 13073045888 14911442966 14940623872 16341307360 17041649104 18675779840 21302061380 26146091776 29822885932 29881247744 32682614720 34083298208 37278607415 37351559680 42604122760 52292183552 59645771864 59762495488 65365229440 68166596416 74557214830 74703119360 85208245520 104584367104 119291543728 119524990976 130730458880 136333192832 149114429660 149406238720 170416491040 209168734208 238583087456 239049981952 261460917760 272666385664 298228859320 298812477440 340832982080 418337468416 477166174912 478099963904 522921835520 545332771328 596457718640 597624954880 681665964160 836674936832 954332349824 1045843671040 1090665542656 1192915437280 1195249909760 1363331928320 1673349873664 1908664699648 2091687342080 2181331085312 2385830874560 2390499819520 2726663856640 3346699747328 3817329399296 4183374684160 4362662170624 4771661749120 5453327713280 7634658798592 8366749368320 8725324341248 9543323498240 10906655426560 15269317597184 16733498736640 17450648682496 19086646996480 21813310853120 30538635194368 34901297364992 38173293992960 43626621706240 61077270388736 76346587985920 87253243412480 122154540777472 152693175971840 174506486824960 244309081554944 305386351943680 610772703887360 1221545407774720
• Sum of all divisors σ(n): 3396370551065280
• Sum of proper divisors (its aliquot sum) s(n): 2174825143290560
• 1221545407774720 is an abundant number, because the sum of its proper divisors (2174825143290560) is greater than itself. Its abundance is 953279735515840

Bases of 1221545407774720

• Binary: 100010101101111110100110100000110111000000000000000₂
• Hexadecimal: 0x456FD341B8000
• Base-36: C1027OF5Z4

Squares and roots of 1221545407774720

• 1221545407774720 squared (1221545407774720²) is 1492173183255506965022271078400
• 1221545407774720 cubed (1221545407774720³) is 1822757299610350249111171244470510758658048000
• The square root of 1221545407774720 is 34950613.8397413559
• The cube root of 1221545407774720 is 106898.0718506157

Scales and comparisons

• 1,221,545,407,774,720 seconds is equal to 38,841,365 years, 24 weeks, 6 days, 10 hours, 18 minutes, 40 seconds.
• To count from 1 to 1,221,545,407,774,720 would take you about one hundred sixteen million, five hundred twenty-four thousand and ninety-six years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 1221545407774720 cubic inches would be around 8908.2 feet tall.

Recreational maths with 1221545407774720

• 1221545407774720 backwards is 0274777045451221
• The number of decimal digits it has is: 16
• The sum of 1221545407774720's digits is 58
• More coming soon!